Implement Settings buttons

app/src/main/java/org/schabi/newpipe/download/DownloadActivity.java

@@ -12,6 +12,7 @@ import android.view.MenuItem;
 import android.view.ViewTreeObserver;
 
 import org.schabi.newpipe.R;
+import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.ThemeHelper;
 
 import us.shandian.giga.service.DownloadManagerService;
@@ -76,11 +77,12 @@ public class DownloadActivity extends AppCompatActivity {
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
-            case android.R.id.home: {
+            case android.R.id.home:
                 onBackPressed();
                 return true;
-            }
-
+            case R.id.action_settings:
+                NavigationHelper.openSettings(this);
+                return true;
             default:
                 return super.onOptionsItemSelected(item);
         }

app/src/main/java/org/schabi/newpipe/fragments/detail/VideoDetailFragment.java

@@ -600,22 +600,27 @@ public class VideoDetailFragment
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
-        if (isLoading.get()) {
-            // if is still loading block menu
+        int id = item.getItemId();
+        if (id == R.id.action_settings) {
+            NavigationHelper.openSettings(requireContext());
+            return true;
+        }
+
+        if (isLoading.get()) {
+            // if still loading, block menu buttons related to video info
             return true;
         }
 
-        int id = item.getItemId();
         switch (id) {
             case R.id.menu_item_share: {
                 if (currentInfo != null) {
-                    ShareUtils.shareUrl(this.getContext(), currentInfo.getName(), currentInfo.getOriginalUrl());
+                    ShareUtils.shareUrl(requireContext(), currentInfo.getName(), currentInfo.getOriginalUrl());
                 }
                 return true;
             }
             case R.id.menu_item_openInBrowser: {
                 if (currentInfo != null) {
-                    ShareUtils.openUrlInBrowser(this.getContext(), currentInfo.getOriginalUrl());
+                    ShareUtils.openUrlInBrowser(requireContext(), currentInfo.getOriginalUrl());
                 }
                 return true;
             }

app/src/main/java/org/schabi/newpipe/fragments/list/channel/ChannelFragment.java

@@ -175,17 +175,20 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
+            case R.id.action_settings:
+                NavigationHelper.openSettings(requireContext());
+                break;
             case R.id.menu_item_rss:
                 openRssFeed();
                 break;
             case R.id.menu_item_openInBrowser:
                 if (currentInfo != null) {
-                    ShareUtils.openUrlInBrowser(this.getContext(), currentInfo.getOriginalUrl());
+                    ShareUtils.openUrlInBrowser(requireContext(), currentInfo.getOriginalUrl());
                 }
                 break;
             case R.id.menu_item_share:
                 if (currentInfo != null) {
-                    ShareUtils.shareUrl(this.getContext(), name, currentInfo.getOriginalUrl());
+                    ShareUtils.shareUrl(requireContext(), name, currentInfo.getOriginalUrl());
                 }
                 break;
             default:

app/src/main/java/org/schabi/newpipe/fragments/list/playlist/PlaylistFragment.java

@@ -222,11 +222,14 @@ public class PlaylistFragment extends BaseListInfoFragment<PlaylistInfo> {
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
+            case R.id.action_settings:
+                NavigationHelper.openSettings(requireContext());
+                break;
             case R.id.menu_item_openInBrowser:
-                ShareUtils.openUrlInBrowser(this.getContext(), url);
+                ShareUtils.openUrlInBrowser(requireContext(), url);
                 break;
             case R.id.menu_item_share:
-                ShareUtils.shareUrl(this.getContext(), name, url);
+                ShareUtils.shareUrl(requireContext(), name, url);
                 break;
             case R.id.menu_item_bookmark:
                 onBookmarkClicked();

app/src/main/java/org/schabi/newpipe/player/ServicePlayerActivity.java

@@ -156,6 +156,9 @@ public abstract class ServicePlayerActivity extends AppCompatActivity
             case android.R.id.home:
                 finish();
                 return true;
+            case R.id.action_settings:
+                NavigationHelper.openSettings(this);
+                return true;
             case R.id.action_append_playlist:
                 appendAllToPlaylist();
                 return true;